Fix flash size of stm32discovery vl #829
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stlink seems to be unable to read flash size on stm32discovery F1 VL (stlink-v1):
st-flash 1.5.1-32-g4909dd8
2019-09-02T17:49:05 INFO common.c: Loading device parameters....
2019-09-02T17:49:05 INFO common.c: Device connected is: F1 Medium/Low-density Value Line device, id 0x10016420
2019-09-02T17:49:05 INFO common.c: SRAM size: 0x1000 bytes (4 KiB), Flash: 0 bytes (0 KiB) in pages of 1024 bytes
Since the flash size is equal to zero stm32F1 cannot be flashed with :
Unknown memory region
This patch add a work around like for L1 to fix manually size if value read equal 0.